| Document |
Document Title |
|
JPS5540159B2 |
A negative energy power supply which operates submerged equipment like a hydraulic actuator. A main component of the system is a submerged chamber held at substantially atmospheric pressure. It is connected to submerged equipment having ...
|
|
JPS5536480B2 |
|
|
JPS5410327B2 |
There is disclosed a ram-type blowout preventer for shearing a pipe which may be disposed within its bore and then sealing across the bore.
|
|
JPS549565B2 |
There is disclosed a ram-type blowout preventer for shearing a pipe which may be disposed within its bore and then sealing across the bore.
|
|
JPS52132488A |
An apparatus for cutting and recovering casing from a well which includes a well string having a swivel mounted thereon, a gripping assembly, a lower drive cone, and a cutter mounted on the lower end of the well string, the swivel functi...
|
|
JPS52132487A |
|
|
JPS5115273B1 |
|
